Answer:
Working and middle-class viewers were catered by television providing storylines about ethnic families. Obviously television, since that was the new technology that was entering everyone's houses at the time. Did you really not know this?
Explanation:
It would be "<span>Slavery was an established institution until the Twelfth Amendment was ratified on December 18, 1865" that is not true, since it was in fact the 13th amendment that ended slavery. </span>